DE69207227T2 - Device for suppressing the radiation of a display device - Google Patents

Device for suppressing the radiation of a display device

Info

Publication number
DE69207227T2
DE69207227T2 DE69207227T DE69207227T DE69207227T2 DE 69207227 T2 DE69207227 T2 DE 69207227T2 DE 69207227 T DE69207227 T DE 69207227T DE 69207227 T DE69207227 T DE 69207227T DE 69207227 T2 DE69207227 T2 DE 69207227T2
Authority
DE
Germany
Prior art keywords
suppressing
radiation
display device
display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69207227T
Other languages
German (de)
Other versions
DE69207227D1 (en
Inventor
Katsuhisa Takase
Masakazu Terada
Yoshikazu Sakai
Masatoshi Michihata
Yoshiyuki Nakashima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sisvel SpA
Original Assignee
Nanao Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP3073236A external-priority patent/JP2953677B2/en
Priority claimed from JP1991068610U external-priority patent/JP2572812Y2/en
Priority claimed from JP3224244A external-priority patent/JP3036913B2/en
Application filed by Nanao Corp filed Critical Nanao Corp
Publication of DE69207227D1 publication Critical patent/DE69207227D1/en
Application granted granted Critical
Publication of DE69207227T2 publication Critical patent/DE69207227T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/29—Picture reproducers using cathode ray tubes using demagnetisation or compensation of external magnetic fields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/0015—Preventing or cancelling fields leaving the enclosure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/0046—Preventing or cancelling fields within the enclosure
    • H01J2229/0053—Demagnetisation

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
DE69207227T 1991-02-20 1992-02-19 Device for suppressing the radiation of a display device Expired - Lifetime DE69207227T2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2598091 1991-02-20
JP3073236A JP2953677B2 (en) 1991-02-20 1991-04-05 Device to suppress electric field radiation from CRT
JP1991068610U JP2572812Y2 (en) 1991-08-28 1991-08-28 Conductive member for applying electric or magnetic field around CRT
JP3224244A JP3036913B2 (en) 1991-09-04 1991-09-04 Device to suppress electric field radiation from flat display device

Publications (2)

Publication Number Publication Date
DE69207227D1 DE69207227D1 (en) 1996-02-15
DE69207227T2 true DE69207227T2 (en) 1996-09-05

Family

ID=27458409

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69207227T Expired - Lifetime DE69207227T2 (en) 1991-02-20 1992-02-19 Device for suppressing the radiation of a display device

Country Status (3)

Country Link
US (1) US5260626A (en)
EP (1) EP0500349B1 (en)
DE (1) DE69207227T2 (en)

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US5910854A (en) 1993-02-26 1999-06-08 Donnelly Corporation Electrochromic polymeric solid films, manufacturing electrochromic devices using such solid films, and processes for making such solid films and devices
JP3277601B2 (en) * 1993-03-31 2002-04-22 ソニー株式会社 Leakage electric field canceling device for CRT display
US5561333A (en) * 1993-05-10 1996-10-01 Mti, Inc. Method and apparatus for reducing the intensity of magnetic field emissions from video display units
US5594615A (en) * 1993-05-10 1997-01-14 Mti, Inc. Method and apparatus for reducing the intensity of magenetic field emissions from display device
GB2279216A (en) * 1993-06-15 1994-12-21 Ibm Cathode ray tube display with cancellation of electric field emission
US5668663A (en) 1994-05-05 1997-09-16 Donnelly Corporation Electrochromic mirrors and devices
US5742128A (en) * 1995-02-02 1998-04-21 Orwin Associates, Inc. Apparatus for mitigating the effects of ambient magnetic fields on the operation of a CRT
JPH08227666A (en) * 1995-02-20 1996-09-03 Matsushita Electric Ind Co Ltd Leakage field reduction device for crt display
US6891563B2 (en) 1996-05-22 2005-05-10 Donnelly Corporation Vehicular vision system
KR0155892B1 (en) * 1995-09-30 1998-10-15 김광호 Degaussing coil fixation structure of cathode ray tube
KR100190160B1 (en) * 1995-10-27 1999-06-01 윤종용 A circuit for shielding electric field of image displayer
JPH09139857A (en) * 1995-11-15 1997-05-27 Nanao:Kk Device suppressing electric field radiation from cathode-ray tube
US5818171A (en) * 1996-01-16 1998-10-06 Samsung Electronics Co., Ltd. Device for removing electric field of display
KR0177942B1 (en) * 1996-03-08 1999-05-01 구자홍 Radiation wave removing circuit in cpt
KR100225045B1 (en) * 1996-05-13 1999-10-15 구자홍 Electromagnetic field radiation noise shielding device of cathode ray tube panel
JPH1092344A (en) * 1996-07-25 1998-04-10 Toshiba Corp Cathode ray tube and cathode ray tube device
US5986406A (en) * 1997-02-15 1999-11-16 Lg Electronics Inc. Electric field noise eliminating circuit in a video display appliance
US6326613B1 (en) 1998-01-07 2001-12-04 Donnelly Corporation Vehicle interior mirror assembly adapted for containing a rain sensor
US6172613B1 (en) 1998-02-18 2001-01-09 Donnelly Corporation Rearview mirror assembly incorporating vehicle information display
US6124886A (en) 1997-08-25 2000-09-26 Donnelly Corporation Modular rearview mirror assembly
US8294975B2 (en) 1997-08-25 2012-10-23 Donnelly Corporation Automotive rearview mirror assembly
KR100371379B1 (en) * 1997-10-09 2003-03-26 주식회사 엘지이아이 Device for blocking vlf electric field radiated from crt of video display system
US6445287B1 (en) 2000-02-28 2002-09-03 Donnelly Corporation Tire inflation assistance monitoring system
US8288711B2 (en) 1998-01-07 2012-10-16 Donnelly Corporation Interior rearview mirror system with forwardly-viewing camera and a control
US6329925B1 (en) 1999-11-24 2001-12-11 Donnelly Corporation Rearview mirror assembly with added feature modular display
US6477464B2 (en) 2000-03-09 2002-11-05 Donnelly Corporation Complete mirror-based global-positioning system (GPS) navigation solution
US6693517B2 (en) 2000-04-21 2004-02-17 Donnelly Corporation Vehicle mirror assembly communicating wirelessly with vehicle accessories and occupants
US6204894B1 (en) 1998-07-17 2001-03-20 Thomson Licensing S.A. Clip attached to a band of a cathode-ray tube
JP2000115566A (en) * 1998-10-07 2000-04-21 Furuno Electric Co Ltd Crt display
EP1079621A1 (en) * 1999-08-26 2001-02-28 SONY-WEGA PRODUKTIONS GmbH Supporting frame for TV set and assembling method for TV sets
US7167796B2 (en) 2000-03-09 2007-01-23 Donnelly Corporation Vehicle navigation system for use with a telematics system
US7370983B2 (en) 2000-03-02 2008-05-13 Donnelly Corporation Interior mirror assembly with display
US7855755B2 (en) 2005-11-01 2010-12-21 Donnelly Corporation Interior rearview mirror assembly with display
EP1263626A2 (en) 2000-03-02 2002-12-11 Donnelly Corporation Video mirror systems incorporating an accessory module
US7581859B2 (en) 2005-09-14 2009-09-01 Donnelly Corp. Display device for exterior rearview mirror
US7255451B2 (en) 2002-09-20 2007-08-14 Donnelly Corporation Electro-optic mirror cell
ATE363413T1 (en) 2001-01-23 2007-06-15 Donnelly Corp IMPROVED VEHICLE LIGHTING SYSTEM
US6918674B2 (en) 2002-05-03 2005-07-19 Donnelly Corporation Vehicle rearview mirror system
EP1514246A4 (en) 2002-06-06 2008-04-16 Donnelly Corp Interior rearview mirror system with compass
US7329013B2 (en) 2002-06-06 2008-02-12 Donnelly Corporation Interior rearview mirror system with compass
US7310177B2 (en) 2002-09-20 2007-12-18 Donnelly Corporation Electro-optic reflective element assembly
US7274501B2 (en) 2002-09-20 2007-09-25 Donnelly Corporation Mirror reflective element assembly
WO2004103772A2 (en) 2003-05-19 2004-12-02 Donnelly Corporation Mirror assembly for vehicle
KR100524074B1 (en) * 2003-10-01 2005-10-26 삼성전자주식회사 Electronic device having bezel structure
US7446924B2 (en) 2003-10-02 2008-11-04 Donnelly Corporation Mirror reflective element assembly including electronic component
US7308341B2 (en) 2003-10-14 2007-12-11 Donnelly Corporation Vehicle communication system
US7626749B2 (en) 2005-05-16 2009-12-01 Donnelly Corporation Vehicle mirror assembly with indicia at reflective element
KR101229020B1 (en) * 2006-06-22 2013-02-01 엘지디스플레이 주식회사 Method and apparatus for demagnetizing shadow mask
US8154418B2 (en) 2008-03-31 2012-04-10 Magna Mirrors Of America, Inc. Interior rearview mirror system
JP4875182B2 (en) * 2010-05-24 2012-02-15 日本写真印刷株式会社 Protective panel and electronic equipment
WO2012064063A2 (en) * 2010-11-09 2012-05-18 Park Chan-Woong Magnetic energy-transmitting element and power source device for cancelling out electrical noise
ES2397449B1 (en) * 2011-08-23 2014-02-25 Juan Carlos GARCIA CAMACHO SCREEN DEIONIZER

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE459054C (en) * 1986-03-07 1992-07-30 Philips Norden Ab PROCEDURE FOR REDUCING MAGNETIC LEAKFIELD AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE
NO873467L (en) * 1986-12-17 1988-06-20 Jonsson Teknik Ab DEVICE FOR ELECTROSTATIC FIELD DERIVATION.
JPH0753342Y2 (en) * 1987-11-13 1995-12-06 株式会社村田製作所 Degaussing device for CRT
DE8716945U1 (en) * 1987-12-21 1988-02-25 Lackdraht Union Gmbh, 2838 Sulingen, De
GB8806230D0 (en) * 1988-03-16 1988-04-13 Vistek Electronics Ltd Display arrangement
US5101139A (en) * 1989-03-09 1992-03-31 Safe Computing, Inc. Reducing video display radiation
US4996461A (en) * 1989-09-07 1991-02-26 Hughes Aircraft Company Closed loop bucking field system
US5107179A (en) * 1990-10-22 1992-04-21 Sun Microsystems, Inc. Method and apparatus for magnetic field suppression using inductive resonant and non-resonant passive loops
FI90598C (en) * 1991-02-07 1994-02-25 Nokia Display Products Oy Method and coupling for reducing harmful radiation caused by a cathode ray tube
US5151635A (en) * 1991-06-20 1992-09-29 Apple Computer, Inc. Apparatus and method for reducing the magnitude of time varying electric fields in CRT displays

Also Published As

Publication number Publication date
DE69207227D1 (en) 1996-02-15
EP0500349B1 (en) 1996-01-03
EP0500349A1 (en) 1992-08-26
US5260626A (en) 1993-11-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SOCIETA ITALIANA PER LO SVILUPPO DELL' ELETTRONICA